Coat slow cooker bowl
with nonstick cooking spray. Place lamb
in slow cooker.
In a small bowl, combine garam masala, coriander, 1/2 tsp of the salt, 1/2 tsp of the pepper and the turmeric. Season meat
with spice mixture. Scatter onion, ginger and garlic over lamb.
Pour tomatoes and broth over top. Cover and cook on LOW for 10 hours.
Stir in green and red peppers and remaining 1/2 tsp each salt and pepper. Cook on HIGH for 15 minutes.
Stir in cilantro. Serve with yogurt and, if desired, basmati rice and naan.